Abstract
For the poly(butylene terephthalate) (PBT)/poly(ethylene terephthalate) blend system, the addition of a barium sulfate (BaSO4) particle, the surface of which was modified with a titanate coupling agent, suppressed the transesterification reaction. The polyester chain ends, considered one of the main sites of transesterification reactions, were blocked through a chemical reaction with the surface hydroxyl groups of the BaSO4 particle; a block copolymer-like architecture was obtained with a BaSO4 linkage. The formation of the block copolymer-like structure for the polyesters stuck to the BaSO4 particle facilitated crystallization by providing a crystallization nucleus without a significant transesterification reaction, resulting in higher mechanical properties.
Original language | English |
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Pages (from-to) | 2589-2597 |
Number of pages | 9 |
Journal | Journal of Polymer Science, Part B: Polymer Physics |
Volume | 39 |
Issue number | 21 |
DOIs | |
Publication status | Published - 2001 Nov 1 |
Keywords
- Barium sulfate
- Interfaces
- PBT/poly(ethylene terephthalate) blends
- Titanate coupling agent
- Transesterification
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Materials Chemistry